Add 28/70 and 32/40
28/70 + 32/40 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
28/70 = 28 × 4/70 × 4 = 112/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
32/40 = 32 × 7/40 × 7 = 224/280 - Add the two like fractions:
112/280 + 224/280 = 112 + 224/280 = 336/280 - 336/280 simplified gives 6/5
- So, 28/70 + 32/40 = 6/5
In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+32/40 28/70+64/40 28/70+32/80 84/70+32/40 28/70+96/40